Structures of two sterically crowded molecular propeller systems
The crystal structures of two molecular propellers are described. Enol phosphate 1 is triclinic P 1 with a = 10.1110(4), b = 12.0647(6), c = 14.2112(7) A; α = 96.421(3), β= 98.633(3), γ = 108.594(2) ° and Z = 2. Enol phosphinate 2 is monoclinic P21/
First characterization of phosphoenol radical cations in solution and the kinetics of the mesolytic P-O bond cleavage in sterically shielded enoxy-phosphorus compounds after one-electron oxidation
The new phosphoenols 1-6 and 9 have been synthesized starting from stable simple enols. Upon chemical or electrochemical oxidation, for the first time phosphoenol radical cations could be characterized in solution by cyclic voltammetry and EPR spectroscop
One-electron oxidation of enol phosphates, enol phosphites and enol phosphinates. Evidence for an unprecedented P-O bond cleavage in phosphoenol radical cations in solution
For the first time phosphoenol radical cations are generated in solution and monitored by cyclic voltammetry and EPR; the sterically congested radical cations undergo an unprecedented P-O bond cleavage, the kinetics of which are determined.